DSENSOR PMS7003 Series Data Manual English V2.5
PMS7003_series_data%20manual_English_V2.5
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2016 product data manual of PLANTOWER Digital universal particle concentration sensor PMS7003 series data manual Writer Zhou Yong Version V2.5 Verifier Zheng Haoxin Date 2016-06-01 Main characteristics Zero false alarm rate Real-time response Correct data Minimum distinguishable particle diameter :0.3 micrometer High anti-interference performance because of the patent structure of six sides shielding Optional direction of air inlet and outlet in order to adapt the different design Very Slim Overview PMS7003 is a kind of digital and universal particle concentration sensor, which can be used to obtain the number of suspended particles in the air, i.e. the concentration of particles, and output them in the form of digital interface. This sensor can be inserted into variable instruments related to the concentration of suspended particles in the air or other environmental improvement equipments to provide correct concentration data in time. 2016 product data manual of PLANTOWER Working principle Laser scattering principle is used for such sensor, i.e. produce scattering by using laser to radiate suspending particles in the air, then collect scattering light in a certain degree, and finally obtain the curve of scattering light change with time. In the end, equivalent particle diameter and the number of particles with different diameter per unit volume can be calculated by microprocessor based on MIE theory. Please find the functional diagram of each part of sensor from Figure 1 as follows. Figure 1 Functional block diagram of sensor Technical Index Parameter Index unit Range of measurement 0.3~1.0；1.0~2.5；2.5~10 Counting Efficiency 50%@0.3μ m Effective Range（PM2.5 0~500 μ g/m³ ≥1000 μ g/m³ 1 μ g/m³ Micrometer（μ m） 98%@>=0.5μ m standard） Maximum Range（PM2.5 standard）* Resolution 2016 product data manual of PLANTOWER Maximum Consistency Error ±10%@100~500μ g/m³ (PM2.5 standard data)* ±10μ g/m³@0~100μ g/m³ Standard Volume 0.1 Litre（L） Single Response Time ＜1 Second（s） Total Response Time ≤10 Second（s） DC Power Supply Typ:5.0 Active Current ≤100 Milliampere（mA） Standby Current ≤200 Microampere（μ A） Interface Level L <0.8 @3.3 H >2.7@3.3 Volt（V） Working Temperature Range -10~+60 Working Humidity Range 0~99% Storage Temperature Range -40~+80 MTTF ≥3 Year（Y） Physical Size 48×37×12 Millimeter（mm） Min:4.5 Max: 5.5 Volt（V） ℃ ℃ Note 1: Maximum range means that the highest output value of the PM2.5 standard data is not less than 1000. Note 2:“PM2.5 standard data” is the “data2” in the appendix. Pin Definition Figure 2 Connector Definition 2016 product data manual of PLANTOWER PIN1 VCC Positive power 5V PIN2 VCC Positive power 5V PIN3 GND Negative power PIN4 GND Negative power PIN5 RESET Module reset signal /TTL level@3.3V，low reset. PIN6 NC PIN7 RX PIN8 NC PIN9 TX Serial port sending pin/TTL level@3.3V PIN10 SET Set pin /TTL l e v e l @3.3V，high level or suspending is normal working status, while low level is sleeping mode. Serial port receiving pin/TTL level@3.3V Output result Mainly output as the quality and number of each particles with different size per unit volume, the unit volume of particle number is 0.1L and the unit of mass concentration is μ g/m³. There are two options for digital output: passive and active. Default mode is active after power up. In this mode sensor would send serial data to the host automatically .The active mode is divided into two sub-modes: stable mode and fast mode. If the concentration change is small the sensor would run at stable mode with the real interval of 2.3s.And if the change is big the sensor would be changed to fast mode automatically with the interval of 200~800ms, the higher of the concentration, the shorter of the interval. 2016 product data manual of PLANTOWER Typical Circuit Figure 3 Typical Circuit Typical Output Characteristic Definition of axis Y: PM2.5 concentration , unit: μ g/m³ Definition of axis X: number of samples, unit: time Figure 4-1 Consistency at 20℃ 2016 product data manual of PLANTOWER Figure 4-2 Figure 4-3 Consistency at 43℃ Consistency at -5℃ 2016 product data manual of PLANTOWER Figure 4-4 Consistency after 30 days’ running Relationship of Temperature and Consistency Definition of axis Y: Maximum Error Modulus(%) Definition of axis X: Temperature(℃) Figure 5 Consistency Vs Temperature 2016 product data manual of PLANTOWER Endurance Characteristics No Item Test Method Characteristics 1 Long Running 1. 10 ㎡ closed Lab,，20~25℃， humidity 30%~70%，particle generator and air cleaner 2. DC 5V power supply 3. Check consistency after 720 hours’ running 1. 10 ㎡ constant temperature Lab 2. 43℃，humidity 70%， 3. particle generator and air cleaner 4. DC 5V power supply 5. Check consistency 1. 10 ㎡ constant temperature Lab 2. -5℃，humidity 30%， 3. particle generator and air cleaner 4. DC 5V power supply 5. Check consistency 1. 10 ㎡ closed Lab,， 20℃， humidity 50%，particle generator and air cleaner 10 samples during 0~500μ g/m³ 2 High Temperature Operation 3 Cold Operation 4 Vibration 5 High Temperature and Humidity Storage 6 Cold Storage 7 Variation of n C n=30 C=0 0~100μ g/m³ Maximum Error≤ ±15μ g/m³ 100~500μ g/m³ Maximum Error≤ ±15% FAN does not screeched 2. DC 5V power supply and check consistency 3. Frequency：50Hz。 4. acceleration：9.8/ S²。 5. Direction：X、Y、Z 6. Vibration Amplitude：±2mm。 7. Time：X、Y、Z –way, Per 1 hour 1. Constant temperature cabinet 10 samples during 2. 70℃，humidity 90%~95， 0~500μ g/m³ 3. Check consistency after 500 hours’ storage 0~100μ g/m³ Maximum Error≤ 1. Constant temperature cabinet ±10μ g/m³ 2. -30℃，humidity 90%~95， 3. Check consistency after 500 100~500μ g/m³ Maximum Error≤ hours’ storage ±10% 4. 10 ㎡ closed Lab,， 20℃， humidity n=10 C=0 n=10 C=0 n=5 C=0 n=10 C=0 n=10 C=0 n=5 2016 product data manual of PLANTOWER Power Supply 8 Power On-Off Cycle 9 Sleep Set On-Off Cycle 10 Laser On-Off Cycle 11 Salt Spray 50%，particle generator and air cleaner C=0 FAN does not screeched 5. Power varies as the cycles of 4.5V to 5.5V ,then 5.5V to 4.5V with the pace of 0.1V/min for 2 hours. 6. Check consistency during Variation 1. 10 ㎡ closed Lab,， 20℃， humidity 50%，particle generator and air cleaner 2. DC 5V power supply，keep On-Off frequency 0.5Hz for 72 hours and check consistency 1. 10 ㎡ closed Lab,， 20℃， humidity 50%，particle generator and air cleaner 2. DC 5V power supply，keep Sleep Set Pin High-Low frequency 0.5Hz for 72 hours and check consistency 1. 10 ㎡ closed Lab,， 20℃， humidity 50%，particle generator and air cleaner 2. keep laser On-Off frequency 50Hz for 240 hours and check consistency 5% industrial salt water, hydrolysis No rust and spray 100 hours, clean with discoloration of purified water and store for 48 metal parts hours n=10 C=0 n=10 C=0 n=10 C=0 n=1 C=0 2016 product data manual of PLANTOWER Circuit Attentions 1) DC 5V power supply is needed because the FAN should be driven by 5V. But the high level of data pin is 3.3V. Level conversion unit should be used if the power of host MCU is 5V. 2) The SET and RESET pins are pulled up inside so they should not be connected if without usage. 3) PIN7 and PIN8 should not be connected. 4) Stable data should be got at least 30 seconds after the sensor wakeup from the sleep mode because of the fan’s performance. Installation Attentions 1) Metal shell is connected to the GND so be careful not to let it shorted with the other parts of circuit except GND. 2) The best way of install is making the plane of inset and outset closely to the plane of the host. Or some shield should be placed between inset and outset in order to prevent the air flow from inner loop. 3) The blowhole in the shell of the host should not be smaller than the inset. 4) The sensor should not be installed in the air flow way of the air cleaner or should be shielded by some structure. 5) The sensor should be installed at least 20cm higher than the grand in order to prevent it from blocking by the flock dust. 6) Do not break up the sensor. Other Attentions 1) Only the consistency of all the PM sensors of PLANTOWER is promised and ensured. And the sensor should not be checked with any third party equipment. 2) The sensor is usually used in the common indoor environment. So some protection must be added if using in the conditions as followed: a) The time of concentration ≥300μ g/m³ is longer than 50% of the whole year or concentration≥500μ g/m³ is longer than20% of the whole year. b) Kitchen c) Water mist condition such as bathroom or hot spring. d) outdoor 2016 product data manual of PLANTOWER Part Number Definition 2016 product data manual of PLANTOWER Physical Size (mm) 2016 product data manual of PLANTOWER Appendix I：PMS7003 transport protocol-Active Mode Default baud rate：9600bps Check bit：None 32 Bytes Start character 1 0x42 (Fixed) Start character2 0x4d (Fixed) Frame length high …… 8 bits Stop bit：1 bit Frame length=2x13+2(data+check bytes) Frame length low 8 …… bits Data 1 high 8 bits …… Data 1 low 8 bits …… Data2 high 8 bits …… Data2 low 8 bits …… Data3 high 8 bits …… Data3 low 8 bits …… Data4 high 8 bits …… Data4 low 8 bits …… Data5 high 8 bits …… Data5 low 8 bits …… Data6 high 8 bits ……. Data6 low 8 bits …… Data7 high 8 bits …… Data7 low 8 bits …… Data8 high 8 bits …… Data8 low 8 bits …… Data9 high 8 bits …… Data9 low 8 bits …… Data1 refers to PM1.0 concentration unit μ g/m3（CF=1，standard particle）* Data2 refers to PM2.5 concentration unit μ g/m3（CF=1，standard particle） Data3 refers to PM10 concentration unit μ g/m3（CF=1，standard particle） Data4 refers to PM1.0 concentration unit * μ g/m3（under atmospheric environment） Data 5 refers to PM2.5 concentration unit μ g/m3（under atmospheric environment） Data 6 refers to concentration unit (under atmospheric environment) μ g/m3 Data 7 ind ica t e s t he n um b e r of p a rt icle s wit h d iame t e r b e yo n d 0.3 um in 0.1 L of air. Data 8 in d ica te s t he n um be r of p a rt icle s wit h d iame t e r b e yo n d 0.5 um in 0.1 L of air. Data 9 in d ica te s t he n um be r of p a rt icle s wit h d iame t e r b e yo n d 1.0 um in 0.1 L of air. 2016 product data manual of PLANTOWER Data10 high 8 bits …… Data10 low 8 bits …… Data11 high 8 bits …… Data11 low 8 bits …… Data12 high 8 bits …… Data12 low 8 bits …… Data13 high 8 bits …… Data13 low 8 bits …… Data and check high 8 bits …… Data and check low 8 bits …… Data10 ind ica te s t he n um be r of p a rt icle s wit h d iame t e r b e yo n d 2.5 um in 0.1 L of air. Data11 in d ica te s t he n um be r of p a rt icle s wit h d iame t e r b e yo n d 5.0 um in 0.1 L of air. Data 12 in d icat e s the n um be r of p a rt icle s wit h d ia me t e r be yo n d 10 um in 0.1 L of air. Data13 Reserved Check code=Start character 1+ Start character 2+……..+data 13 Low 8 bits Note: CF=1 should be used in the factory environment . 2016 product data manual of PLANTOWER Appendix II：PMS7003 transport protocol-Passive Mode Default baud rate：9600bps Check bit：None Stop bit：1 bit Host Protocol Start Byte 1 0x42 Start Byte 2 0x4d Command Data 1 Data 2 CMD DATAH DATAL 1. Command Definition CMD DATAH 0xe2 X 0xe1 X 0xe4 X 2. Answer 0xe2: 32 bytes , same as appendix I 3. Verify Bytes : Add of all the bytes except verify bytes. DATAL X 00H-passive 01H-active 00H-sleep 01H-wakeup Verify Byte 1 LRCH Verify Byte 2 LRCL 说明 Read in passive mode Change mode Sleep set
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